Structural alterations in Gwynedd and Anglesey

Covering Gwynedd and Anglesey

We cover Gwynedd and Anglesey, including Bangor, Holyhead, Caernarfon and Llangefni, and the towns around them.

Homes in Gwynedd and Anglesey

Across Wales you find valley terraces, coastal towns, rural stone houses and newer estates, so access, slopes and local materials all feature in the design.

What goes into a structural alteration?

We arrange the structural calculations, support the floors and roof above with temporary props while the wall comes out, install the steel on padstones, then encase it for fire protection and make good. Chimney breast removals and new openings in external walls follow the same process.

Building control application and inspections
Temporary works and propping
Steel beam installation on padstones

What is the guide price for a structural alteration in Gwynedd and Anglesey?

Typical ranges for structural alterations. Ground conditions, access and specification move the final figure, which we fix in writing before work starts.

Structural alterations	Guide price incl. VAT
Single load-bearing wall removal with steel	£3,000 to £7,500
Chimney breast removal with support	£1,800 to £4,500
Multiple walls or full open-plan remodel	£8,000 to £20,000

Planning and building rules in Gwynedd and Anglesey

In Wales the planning rules, including what counts as permitted development, are set by the Welsh Government, and Welsh building regulations differ in places from England’s. We check both against your house before drawings are finalised, and handle party wall notices where needed.

Internal work like this does not usually need planning permission in Wales unless the building is listed. Building regulations approval is needed for the structural work.

What can affect a structural alteration?

Removing walls can affect the fire escape route on open-plan ground floors in three-storey houses.
Pipes and cables in the wall need rerouting first.

What happens after I enquire?

Start with a conversation. A short call or the online form is enough for us to understand what you want to build.
We visit and measure. A surveyor checks the house, the boundaries and the ground, and discusses what is realistic.
Drawings, approvals, written quote. We prepare the design, apply for the approvals it needs, and give you a fixed price in writing.
We build it. Work follows an agreed programme, with inspections at each stage and a final sign-off.

Structural alterations: common questions

How do I know if a wall is load-bearing?

We check on site and confirm with the structural engineer.

Can the steel be hidden in the ceiling?

Often it can be set within the floor depth, avoiding a downstand. The engineer confirms what is possible.

Do you work in Gwynedd and Anglesey?

Yes. Gwynedd and Anglesey is within our coverage for structural alterations, along with nearby Bangor and Holyhead.

Structural alterations in nearby towns

Learn more about structural alterations, or see every project we cover in Gwynedd and Anglesey.